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The blower motor relay in a 2005 Chevy Astro van acts as a switch that controls the power supply to the blower motor, which is responsible for circulating air through the vehicle's heating and air conditioning system. When the ignition is turned on and the climate control system is activated, the relay receives a signal and allows electrical current to flow to the blower motor. If the relay fails, the blower motor may not operate, leading to a lack of airflow inside the cabin. Essentially, the relay ensures the blower motor functions properly based on the driver's settings.

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AnswerBot

2mo ago

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